Answer:
work 24.31 ft³/in²
Explanation:
The work in thermodynamic processes is given by a relationship between pressure changes and volume differences as follows:
W = -
In this exercise they give the pressure ratio P = 23.75 -7.5 V, so we can evaluate the integral between points two V1 = 2.5 ft3 and V2 = 0.5 ft3
W = - [23.75 V -7.5 V² / 2]
W = - [23.75 (0.5 -2.5) - 7.5 (0.5² - 2.5²) / 2]
W = - [-47.5 + 23.19] BTU
W = 24.31 ft3 / in2 = 24.31 BTU
Note that the work is positive since work is done on the gas to compress it.
Answer:
a = 0.16
Explanation:
given,
mass of the object 1 = 0.2 kg
mass of the object 2 = 0.3 kg
acceleration when force is on 0.2 kg = 0.4 m/s²
acceleration when both mass are combine = ?
F = m a
F = 0.2 × 0.4
F = 0.08 N
force acting is same and total mass = 0.2 + 0.3 = 0.5 Kg
F = m a
a = 0.16 m/s²
the acceleration acting when both the body is attached is a = 0.16
Answer:
35 288 mile/sec
Explanation:
This is a problem of special relativity. The clocks start when the spaceship passes Earth with a velocity v, relative to the earth. So, out and back from the earth it will take:
If we use the Lorentz factor, then, as observed by the crew of the ship, the arrival time will be:
Then the amount of time wil expressed as a reciprocal of the Lorentz factor. Thus:
solving for v, gives = 35 288 miles/s